Question about John Deere 420,1020,2010,2020,2510,2520 Tractor Float

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My L100 Sabre is 4 years old and has always started and run well. Every spring I do the annual tuneup kit. The end of last year the mower would start but when I added throttle the engine would run rough, have difficulty accelerating and pumps out blue (fuel) smoke. I checked all the fuel lines up to the carburator and found no obstructions although there is a little dirt in the tank I don't believe this is the problem. The plug sparks properly and is clean. Can you help?

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Blue or white smoke is oil or water. Fuel smoke is black. The rough running is dirt in your carb.

Posted on May 01, 2010

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